Firefly generative credit on photoshop are too limited!

I use photoshop with generative fill and i didn't have any problem with credits, today i knew about the 100 credit limit for monthly subscription

i assume that every time i generate from a fill i spend 1 credit, that means i can generate only 100 times monthly? and considering that 50-70% of the output are trash and not a good output, it's like i'm subscribing to generate only 20-25 correct fills... ... ...

is there a way to pay more to have unlimited credits working in photoshop? in novelAI there's a subscription which gives you unlimited generative output when comes to basic parameters